The end result was not only did the ban not pass, but the billboard companies through up what might, in scientific terms, be called a "metric f@ckton" of them down I-70 along with the rest of the state's highways.
They're ugly as dog crap. You don't realize just how many there are until you go up to Iowa and drive in a geographically-similar area and don't have to see the landscape spoiled by "LION'S DEN ADULT SUPERSTORE" and "HELL IS REAL" billboards.